Locomotive valve-gear.



O. W. YOUNG. LOCOMOTIVE VALVE GEAR.

APPLICATION FILED OCT. 2,1914. v

Patented Apr. 10, 1917.

5 SHEETS-SHEEI 1.

O. W. YOUNG. L OCOMOTIVE VALVE GEAR. APPHCATION FILED OCT. 2. I914.

Paton U'd Apr. 10, '1 917.

5 SHEETS-SHEET 2.

iii? r 124441) 1.4.9

0. w. YOUNG. LOCOMOTIVE VALVE GEAR.

APPLICATION FILED OCT. 2. 1914.,

Patented Apr. 10, 1917.

5 SWTITS -SHEET 3.

O W. YOUNG.

LUCOMOTIVE VALVE GEAR. APPLICATION FILED OCT. 2. 1914.

Patented Apr. 10, 1917;

5 suzns-snzzr 4, k

0. W. YOUNG.

LOCOMOTIVE VALVE GEAR I APPUCATION FILED OCT. 2 l9 4- I' 1,221,947. Patented Apr. 10, 1917.

5 SHEETS-SHEET 5.

Willi/III); III! I HEADLIGHT comm, OF

scale of the vialve gear 1 UNITED STATES PATENT' OFFICE.

IlTIB W. YOUNG, O1 CHICAGO, ILLINOIS, ASSIGNOR -'.l'.0 TYRE-NATIONAL ELECTRIC CHICAGO, ILLINOIS, A. COBPOBATICN OF NEW'JEBSE I.

LOCOMOTIVE vanvn enm To all whom it may-concern Be it known that I, OTIS W. YOUNG, a citizen of the United. States, residing at Chicage, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Locomotive Valve Gears, of which the following is a spoon fication.

My invention relates primarily to valve and reversing gears tor steam engines and has particular reference'to a gear for usewith the welldmown typeof railroad loco motive which is driven by two steam engines one on either-side of the main frame and it has for some of variable parts appear. Still other objects will appear as the description proceeds.

It illustrated more or less diagrann inatically in the accompanying drawings, wherein-- Figure 1 is a side elevation of one of the engines of the locomotive in part section and with parts removed;

Fig. 2 is a plan view of the valve gear with the valves of the 'tAVO engines of the loc-oiruitive in part section and with parts cut away;

Fig. 3 is a side'elnvatin on an enlarged a different position from. Fig. 1, the parts shown in the upper right-hand corner separate being-the corresponding parts on thefar side,- the remainder of the view showing the parts on the near side to indicate the relative position of the parts on "the far side which are operated by the parts on the near side;

Fig. 4 is a diagrammatic plan view in part section with parts broken'away and parts omitted of the reversing gear. and connections; Fig. and with parts removed of the reversing gear; i

Fig. 6 is a side elevation in part section of a reversing screw and sleeve;

Specification of Letters Patent.

reversing screw and nut;

its objects .to provide means for making the piston of one engine provide the lap and lead movement for itself i he only one or there 5 a side elevation in part section I Pate nted Apr. 10,1917. Application filed October 2,}914. Serial No. 864,552.

, Fig. 7 is a secticn on the line 77 of Fig. 4',

Fig. 8 is a secticii on the line 8*8. of Fig. 6;

Fig. 9 is a section on the line 99 of p Fig. 5; e i 'Fig. 10is a detail section of part of Fig. 11 is a seczion on line 11-11 of Fig. 6

valve housing showing a modi valve stem cross head guide;

fled fomgoi Fig. 13 is a se tion on line 13-.-13;of

g-. l 14 is a diagrammaticdetail showing my reversing gear applied to the ordinary type of Walsehaerl valve gea'i';'-

Fig. 15 is a detail part seet'on on an e'ni larged scale showing a. portionof the reversing gear shown in Fig; Lt.

Fig. 16-46 of Fig. 2. v y a Like parts are. indicated by' like letters throughout the several figures.

Since my invenlionis primarily applicable to a locomotive, I have illustrated it diarainniatically as so applied and have shown in Fig. 1 enough of the locomotive frame and supporting m echanisin to indicate generally the location of my valve gear and itsr.

relation to the locomotive parts ofihe 18:!

ordinary type.

A is a locomotve driver and there may may be a number of them. A lis the usual type of locomotive frame. A is the journal block which contains the drive wheel axle and is mounted A is a saddle on the 10m.

in the frame. motive frame fixed in posit on upon each individual locomotive but likely to be found indifie'rent positions in difi'erent types and; designs of locomotives. A is a hanger or cross frame extending across between the two side frames of the locomotivewto tie them together and also to provide a support for the cross head guide A. cylinder supported on the engine frame in any suitable manner not here specifically indicated. Init 'reciprocates the piston A having the piston rod A which passes through the usual type of stufling b ox A in i i the cylinder head A! and drives a cross head.- 1 1-;

Fig. 12 is a sectio'i through the end pf 16' is a fragmental section on line" 15 A is an engine A" which reciprocates on the cross head 1 steamchest" B, is a frame or support for the movable members of the valve gear mechanism mounted at its forward end on the cross and vided with a links having trunnions C" 85 frame A and supported at its rear end by the extension L-piece B .which rests upon the saddle A The frame, it will be noted, is substantially U-shaped being made up of two substantially parallel side members B B tied together at the rear end'to form a U having an extension 13?" to which is attached the L member B ()n the lefthand side of the locomotive frame is a similar support for the valve gear movable mem rs made up of side pieces gether at their rear end and the rearward extension 13 Lpieces B which also rests A on the locomotive frame. extendin the two two separate valve in parallelism. i v C, C are combined lap and lead lever segmental slotted reversing and eut-ofi varying and rotatably mounted one in each of the valve gear frames adjacent the rear ends thereof. These reversing links are each of them prodownwardly dependin exten- SlOIl 'C which extension while not integral with the link is after assembly rigidly mountfloating links pivoted provided with connected to the upon the saddle B is a tie rod across the locomotive frame tying gearframes or supports the cross head wrist pin.

D, D are two interlocking cross shafts. Shaft D 1s rotatably mounted in a bearing D at the forward end of the member" B and-the shaft is rotatably mounted in a' bearing D at the forward end of the shaft D. D is a lever'mounted on the left mounted on the left hand amounted on the'lever D Y lower end pivotally by means of the link D B, B tied 'topieces B B -together to hold the at one end in the in the :slot

mounted. on' the shaft below' with boss'es are pivoted connecting. links F, F

exactlysimilar and identical hand end of the shaft D a d n is a lever end ofthe shaft D. D lap and lead lever mounted pivotally upon the lever D connected at 'itslower end by means of the link D with the valve stem cross head A". D? is v a floating lap and lead lever pivotally connected at its w th a similar valve stem cross head A.

I E is a reach rod connecting the upper ends respectively of the reversing link C, and the lap and lead lever D. E is a similar reach rod connecting the upper ends of the reversmg link G and the lap and lead lever D so that a rocking of the reversing link'will result in a rocking of'the lap and lead leveiu,

the lever D is a radius Pivotally mounted on bar, E. This radius bar is forked at its rear end as indicated at E to furnish a hear. ing for the pins Ewhich project outwardly on either side from'the link block E which block is slidable in the reversing link. A similar construction appears on the left hand side of the engine wherein a radius bar E is pivoted on the arm D forked at l) and pivoted to a similar sliding link block in the reversing link C is a reversing member B mounted at the other end on shaft F 1 which member B; F 31s a'reversing arm rigidly mounted on the left-hand end-of the reverse shaft F pivotally engaging the block F which block is slidable in the slot F in-the radius bar E. F is an arm'rigidly mounted on the stub reverse shaft F pivotally engaging a block F which block is slidably mounted 7 in the radius bar 'E F is a shortre verse armmounted on the shaft F at approximately 45 below the plane of theanms 2 andF; F 3 is a short reverse arm F 45 above the plane of F2, F10. F11

and rotatably a stub reverse the arms F and Slidable n them is a F provided above and F F upon which 1voted at their other ends respectively on the arms F", F so that a longitudinal movement of the sleeve F the arms F, F toward or from each other as the case may be and similarly rocking the arms F, F. I

G is a bracket mounted on the member B behind and removed from the bracket F Th ough it passes the screw stem G On eit er side of it are ball bearings'G, G e tl'in position upon the stem G: by lock The stem G? terminates in a screw G located within the sleeve F1 G is a packing box at one end of the sleeve F. G is an oil-tight plug at the other end. G

reversing sleeve.

shaft rotatably mountedat approximately will result in rocking stub its itself rotatable in the! t t are bearing brackets mounted t on the member B a ingbox.

is a cylindrical reversing nut mounted in the sleeve- F" and held against the shoulder G by a sleeve G forced into position by the plug G. This not is held' against rotation by a lock nut (i if" s an oil hole through the sleeves F and ti. G is a slot in the bottom of the nut G to peii mit circulation of the oil throughout the en tire length of the sleeve F". I

H is a universal joint on the rear end of the stem G. fl is a hollow control rod mounted at one end on the universal joint H and rotatably mounted at the other in a split bearing H. The two parts of the split hearing are adapted to he clamped together against the enlargement H. on the shaft H by means of a cam lever H having a cam shoulder H pivoted at one end on the lower portion of the imaring the shoulder being adapted to engage the cam surface H. The block H is pivotallv mounted indicated on a plug HP adapted to he screw threaded into the side of the boiler H H is an operating hand wheel tvl'ierebv the operator may manipulate the reversing mechanism.

"I is a slot through the shaft H adjacent its lower end. I is a hollow annular carriageslidahle upon shaft H. I is a con neeting link pivoted on-sa'id carria at one end and at the other eudon the sleeve F. I is an indicator rod located on the control rod H 1 is a. cross piece siidahle in the slot I engaging the intcri' the carriage 1 mounted at the hm'cr end indicato'rI. I is a scale "raved on the end of the indicato arm win. it passes through Fil the sleeve or nut I JIMMY livid as indicated to show the. position of the reversing! ,lear.

A. modified form of rev device is illustrated in Figs. 12 and i.

where. instead of pro ection from having a pondmwaw empioj. a. strain the stoma chest cove chest cover H held in poi .on on the steam chest in the usual manner. Located in the center of this cover ll: is a stidiing box 11 c-ontaiminn packing li' surrounding the valve rod E IT a giand mounted in the stuffing box H and held rigidly in position therein hv means of the bolts H which engage, of course, the flange Hf on the stuff- H is a rod outwi rdly projecting from the gland parallel with the valve stem and forming a guide for the crosshead H qvhichis apertured to engage or slide along.

the rod and rigidly mounted on the valve stem, which cross head of course, carries the pins H which engage the link" H in the usual manner.

In the modified form shown in Figsgfl and 15, I apply a portion of my reversing mechanism to the ordinary well'known type of \Yalschaert valve gear wherein L is'the steam cylinder, L the valve steamchest, L

the engine. crosshead, L the valve stem ,crossheadi the combination lever, L a

driving link conne tion therefrom to the arm L" on the crossheadL, L a radius rod leading from one end of the combination lever to the link block L in the reversing link L". I) is the driving arm on the reversing link pivoted at one end to the eccentric rod L". M is a bracket ,IPOH which'are pivotally mounted the reversing ll'nk L" and the reversing shaft M. The reversing shaft M carries a lever M pivoted on a block MP, which block is slidable on the extension M on the radius rod L. M is a controlling lever on the reversing shaft M M a link leading therefrom and pivotally attached at its other end to thelug M in the block M screw-threaded in the end of the reversing sleeve M, which sleeve adapted to be moved back and iorth in the same manner as previously indicated in my preferred form by means of a screw M It will be EVltlQI ll that while. I have shown in my drawings an operative device. stiil many changes might be made in the size, shape and arrangement of pa rts without departing matcrialt from the spirit of my in vcntion. and I 'vislnj therefore, that my drawings be considered asin a sense diagrammatic. 1

The use and op ration of my invention are as followst- It must first he understood that the valve movement for the two engines of the'locomo tive is obtained en :irely from the pistonmove ment of those two engines; The peculiarities of lap and lead in valve travel are, of course, well known and need no particular discussion at this time. Suflice it to say, that it is necessary to havz two separate sources of power in order to provide the proper lap and lead and valve travel movement In my arrangement; l: mate the reciprocation of the piston of each engine give the lap and lead movement for its own valve and at the same time give the val no travel movement for the valve of the other engine. Thus it is necessary to connect across between the twoenglues by any sui tahh- 1n ians such as the two rock shafts shown.

.Referriug first to Fig. i. when the piston reciprocates it will cause the reversing link to rockhack and forth. The rocking of this link will cause the floating lap and lead lever to'reciprocate, and assuming for the instant' that the lever which supports the floating lap and lead lever is fixedgthe only movement .givento the engzne valve on the right hand side will be the lap and lead movement caused by the rocking of the lap and lead leveri This mov ement is a very slight movement; as'mav be seen by the arrangement 0 the lever. elieve assumed that the lever on the interlock ing sh'aft upon which the lap and lead lever on the right hand side is mounted is fixed. This is because in the view? as shown the radius bar doesnot'reciprocate.

It does not reciprocate because the block upon which it is pivoted is, as'shown, located at the center of the reversing lever, and thus the movement of the reversing link hasno efi'ect. It will, of course, be understood that 1 'when the block is at the center of one lever,

the similar block is at the center of the other, and that the operation of the other engine is the same so that in the position shown in Fig. 1, the engine will run in either direction according to which direction it happens to have started, but its power will be slight, on

' account of the steam port opening being equal only to the lead, its maximum opening occurring at each dead center of the driving wheels. Inu'mediately the wheel center is passed, the steam opening coinmencesto close and cut off access before there is an appre-.

ciable movement of the piston, but the clearance space between the piston and-valve will contain steam athi gh pressure, and its expansion will cause sufficient power to operate the engine.

Referring now to Fig. 3, we see that thereversing gear has been manipulated to bring the block near the upper end of the slot in the reversing link. The engine on the other side will similarly have the block near thebottom of the reversing'li'nhas it will be noted that the reversing mechanism is such that when one bar goes up the other goes down. -In double cylinder engines the main rod connection to the driving wheels is in effect a crank on each end of the drivingaxle, one crank- 90 in advance of the-other. Consequently one engine, usually the right engine maybe said to lead thepther 90. If, however, we should consider the'left hand engine as leading its leadwould. then be.270 instead of 90. For this reason a: valve deriving its entire movement from the reciprocation of the pistons must be arranged for valve travel producing mechanism direct on one side and indirect on the other. This is the reason for 1 causing one radius bar to 'go up when the other goes. down. Instead of being a disadvantage, this is a decided advantage inasmuch asit causes a balanced gear and materially lessens its difiiculty to manipulate.

NOW with the engine moiimg thereciprocation of the crossheatl Will result. in a rocking of thereversing lever and this rocking of the reversing lever will result in a ,rocking ofth'efioating lap and lead lever and-thus the valve on the right hand side will be given this lap and lead movement owing to the making of the right hand reversing lever and the same will be true of the valve on the hleft hand'side owing to the rocking of the left hand reversing lever. But'now that the two blocks are moved away from thecenter of commence to reciprocate and the reciprocation of the radius bar will tend'to rock the two interlaced shafts whichwextend across project one above and one below the versin the reversing levers, the radlus bars W111 the engine. As shown in Fig. 3, the rocking of the radius bar on the right hand side will result in a'rcking of the lever which so ports the lap and lead lever on the other si e, that is to say, for the left hand engine, and the left hand piston thus takes its lap and lead movement from its own piston but gets its valve travel from the reciprocation ofrthe piston of the engine on the other side. The reversing shaft it will be noted is made up oftwo parts, one short, the other long. Each of them has at each end a lever. The outside levers when rocked tend to raise orlower, as the case may be, tlie'radius bar, because these levers are pivoted on the block which is slidable in the slot in the ra ins bar. The slot being longer than the b ock permits the arms to rock without binding and also permits the radius bar to reciprocate Without lIItGlfGIE-Dfi. trointhese arms. The two shorter arms adacent the inner ends of the two parts of the rock shaft plane of the longer arniis and. are connected to the reversing l'iousing so that v 'an this reverse ing housing moved t by means of the toggle r .t, irt arms will be separated and one arm will be raised. and the other lowered, and when the reversing housing is moved away from the rock shaft the opposite takes place so that when one radius bar is raised the other is lowered. Thus there is always mechanical balance and the load upon the reversing mechanism is slight. i It will-be noted that the reversing mechanism is mounted upon the valve mechanism frame so that when expansion takes place in the boiler'no effect will be had. in the reversmg mechanism, because the. only thing that effects the reversing mechanism is the. r0

tation of. the screw in the reversing housing, which. since-that screw is fixed in position on the gear frame. moves the reversing sleeve back and forth. Any expansion in the engine resulting in a change in. the length of the rod orcontrol leading-up t0 the engine cab can have no effect because the end of that rod is free to slide back and forth in the support on the boiler.

In order'that the. engineer may know just;

where his reversing mechanism is placed, that is to say, whether-.lus eng ne is set for reverse or'for forward or in a particular.

' cutoff, an indicator must be provided. This indicator takes the form of a graduated or marked rod which projectsout from the end of the controlling shaft through the hand wheel. This shaft or rod moves back and forth in response to the movement of the -re sleeve because; of the connection throng the link from the reversing sleeve to the carriage slidable on that hollow shaft.-

'-This carriage, of course, is located on the shaft where the shaftis .slbtted andbeing indicationiof f g-Theblock in thereversmg link is integral with the pins projecting from it and t ebloclr itself or enough gine frame between the which rests upon the saddleupon th eflocm pair of how -.-of the engine is ticular'engine, it will then be necessary only to provide a I v from the crosshad wrist piny'dr other able point toth'e adjustable downwardlyex- I i is at that-time rigidly mounted on the reversing link. i This nrrmg of course; would change both in length 'an d in inrflinationto thn-rreversing ing upon the side and arrangementbf the h bllow the pin on each slide through the slot from the} indicator bar is engaged by the citrri'age and moved-back and forth by it so as to give the operator at all'times a fixed where hisenginefis.

ese pins are themselves rotatably mounted in the bearings'inthe forked ends of the radius r. .These bearings can-be made as long as cessarv without efi'ect upon the weight'of the weight of the revers- 1 g link.

i'lhe bearing. for the upper end of the rer'se control rod is, as it will be noted,

s rew-threadedin thewzrll of the firebox or boiler and the rod is slidablexand rotatable in' that bearing. "In order to prevent rotation of the rod after the engine hasbeen set at a certain point, the quick active cam lever device is applied to draw her the two split parts of thebearing'an lock the rod against rotation. The reversing screw,

it willbenoted, is inclosed withln a dust proof oil container or receptiicle so that it is not exposed to wear and abrasion by the grit and dirtgof the road, and as thescrew moves back and forth in the nut therein conta ned, it is lubri'catedby the oilcontained with n the housing;

, In assembling and applying my device to any particular type of engine, the gear frame will 'be-first put in position attached end to the cross-frame in the V at its forward rear of the cylinder and s'upported at its rear ends by the eirtension L member. This extension v ent types of engines. It must be long so that thetielpiece across the entwo 1L members motive frame is located between an adjacent drivers. These L-members are, of ordinary stock material course, madeout of and. "fly becutofi' how it is spaced or whatthe room is the gear frame can always variable parts in this connectlon across between them. he reversing links will, ofconrsm then be mounted in the gear u'frnme, and since the "position of the reversing" link with respect to the 'crossh'ead always fixed for each perlink or suitable; link fextending suittending arm which any ordinary range 111d size" or shape.

L member-will change for difier-' to suit so that no'matter 'g orhow small the whe or no matter be supported from the 10- comotive {frame without difficulty, the only being the L members and the tie; members cutting l n e end-u engine, The two interlocking rock shafts will then be put in position supported one at either end as indicated at the other and one at either end on the gear frmne- The two arallel levers at either end project upwa'r ly. ,,The lap and lead levers are then positioned, being piv )ted each upon the outer lock levers and the upper ends of these lap and lead levers will then be connected by the reach rods to the upper that is to say, the reach rod levers are, of course, always fixed in size and do not vary for difieirent types of engines. The-radius bars are then put in place pivoted at one end on the lllSlde upwardly proectinglever and at the other-end on the lock which is then assembled and put in place with the arms on either end in pivotal engagement with one of the blocks slidable in the radius bar so that rotation of the reversin shaft will control the vertical osition 0 the radius bar. .The reversing s eeve is then put in pdsiticn slidable in the bearings of the gear frame and coupled up b means of the toggle link connections with the short reversmg arms. The reversing screw is then put in mesh with the reversing sleeve and anchored by means of the bail bearings'in the beari: 1g amshown. All. these parts are,'o course, fixed and standardfor the valve stem and crosshead is connected by means of the'va-riable link to the lower end of the la and lead leverandthis link changes for ifi'erent type and sizes of engine, but this change has no effect upon the operation of the device. The same is true of the levers controlling the rod which ex tends back tothe cap It may be of any suit able length so long as it rear-hes from the universal onthe en'ilof the reversing screw to the cab where the engineer can operateit, The carriage free to slide on the rod is,

between it and" the reversing sleeve is fi xed so that the link=connecting them is always the same length. However, for different.

length engines, difierent length of indicating rod must. be used andthis can, of course, be cut. oft; in lengths to suit every standard stock subsequently when the engine s manufactured ;or.'1la.ter

' by the operator.

By the expression workin parts, I-mean those parts of the valve an which cotiperate to give the desired motion? to the valve. y driving parts 1 mean such as impart to the working parts their m0;

tionh By drivenparts-I mean such as re ceivelmotionfrom the working-parts. By the term actuating: as applied, tothe working parts, I 111831. to incl parts with the reversing. mechanism ex- 130 3;;

ends of the. reversing lever respettively. These parts;

lead lever, the J and the rocking shafts with their Then of course, fixed and st indard and the distance marked as desired either.

reversing gear do the working f I movement which tures could he might be very mechanism shown andyet comply with my eluded.-

the reversing mecnanism, I mean those of the working parts which have to do with reversing the valve movement.

By the expression floating lever, I mean to indicate such a lever as is not limited in its motion at any'particular point to a par- 'ticular point or line' of movement by anything other than the parts which contribute to its movement or transmit motion from it to some other part. e 4

By the term flexible as applied to the connecting parts, I refer to connections capable of movement with reference to their several parts, as, for example, where they are pivotally connected. v .c

The foot of the reversing "link is driven from the crosshead. 1 It is the crosshea'd furnishes the power to oscillate the link. Preferably I take that power from the .crosshead by connecting the reversing link directly to the crosshead,but it is obvious that all '-that is necessary is that it be connected to some pafrt'of the system driven by the. crosshead since the piston, the crosshead,t-he, main rod and the crank pinion all operate in synchronism and it would make no diflerence from what specific part of this synchronized crosshead system the powe; taken, i I Y By the expression control for driving the link is trolsthe reversing mechanism. The rod from such control. to the transmission device I call. a connection rod or a connection' be tween the control and the reversing mechanism. i

The 7 transmission device isthat apparatus in the unitary structure art directly associated with the reversing mechanism wherepar by the latter can be, controlled. It is tially designed to operate without reference to any changes for examplein effecting length in the rod or connection; By, the ex- 1 pression group' or integral group I refer to that association of the several parts.

which brings them in the unitary or group relation whereby they may in such group be up and then applied to any given loco- By the expression permotive or engine. manently? as I have eniployedit with regardiparticularly to connections I desire to distinguish between-adjustable devices and devices which tion. g i I wish it understood that these several feagreatly' changed without departing from the spirit of thus for example a transmission mechanism different from the specified are permanent in their relai nvention. My: invention here consists in details the arrangement of these details the groupin of the several parts fll dathe group 'mg of a l the parts and in the frame interand the engine frame.

We refer to ,the hand wheel whereby the operator conc'ontrol, said connections side and to shafts having-the same rotational axis.

mounted on the engine in combination with my invention mediate the group and the engine frame and in the several 'mbinations of these said parts together 1r'1th the cross rods and connections or such of them as are necessary in fully deany 'ven on as herein before scribe d and illu trated. V

' I claim: j A 1. A steam engine valve gearlcomprising valve actuating and reversingdevices and their supporting and connecting parts, ar-

m a permanent, unitary group, re-

ranged niovably mounted on the engin in combination with valve, engine and control connec' tions, adapted to be varied to to engines of varying designs. 2. A steam engine valve gear comprising valve actuating and reversing devices.

I and their supporting-and connecting parts,

arranged 11in permanent, unitary group, removably mounted on the engine in combination with valve', engine and control con nections, adapted group of engines of varying designs and an intermediate frame between-the group v 3. A steam engine valve valve actuating and reversing their supporting and connecting parts, arranged in a. permanent, unitary group removably mounted on-the" engine in combination with valve,.engine and control coni nections consisting each of a link pivotally connected atone -,end with the working parts and at the other with the engine, valve andadapted to be varied to fit the group to engines of varying designs. c I

4. A steam engine valve gear comprising valve actuating and reversin devices and their supporting and connecting parts, ar-" ranged in two permanent, [unitary groups mounted one oneachcside oftheengineinvv combination with-valve, engine and control connections adapted to bevaried ofit the group to engines of varying designs, and 'two cross-shafts and connections whereby each shaft is connected to the engine at one the valve at the other, sgid o; A steam engine valve gear. comprising valve actuatingand reversing devices and their supporting and connecting parts, at I ranged in two permanent, unitary groupsoneon each side of the engine, re'mova blv valve, engine and control, connections adapt ed to fit the group design and frames intermediateyeach group and the engine-and-two cross-shafts mount-1 A ed on said frames and connections whereby 125 each is connected to the engine at one end and to' th'e valve atthe other.

6. A steam engine valve gear comprising I valve actuating and reversing devices; and

their supporting" and connecting parts, ar- 130 fitthe group a to be varied to fit the gear comprisin devices an s to-engines of varied ranged in permanent, unitarygroups, one on each side of the engine, reinovably mounted on the engine in combination with valve, engine and control connections adapted to be varied to fit engines of varying design and two cross-shafts and connections whereby each shaft is connected to the engine at one end and to the valve at the other, said shafts having the same rotational axis and a cross reverse mechanism shaft mounted on and supported integral with said groups 7A steam engine valve gear comprising valve, actuating and reversing devices flllt their supporting and connecting parts, ar ranged in two permanent, .unitary groups one on each side of the engine, removably mounted on the engine, in com hination with valve, engine and control connections adapt-' ed to fit the groups to engines of varying design and frames intermediate each group and the engine and two cross-shafts mounted on said frames and connections whereby each is connected to the engine at one end and to the valve at the other, and a cross reverse mechanism shaft mounted on or supported integral with said groups,

8. In a steam engine valve gear, the com binationof valve operating'parts with reversing parts grouped as a unit on the engine, with power transmitting connections to the driving and driven parts, and control- ,ling means or the reversing-part compris- 'ing' a. rotatable operating shaft and a universal joint therein. i

9. A steam enginev valve actuating and reversingdevices and their supporting and connecting parts and'a valve reversing in'a permanent, unitary group,

. I) mounted on the engine in combination with (laptvalve, engine and control connections a edto bevaried tofit the. group to engines 0 varyin design. v p

10. steam engine valve gear comprising valve actuating and reversing,devices, con- -nections to the engine, the valve and, the'control and intermediate the control connection reversing mechanism a trans hmring'a rotating part en- 'lon'gitudinal' movement.

and the valve E m ss onzd i e 50, chored against -nections to the engine, control, a transmission tating part anchored movement and a" -63 against. longitudma mission'device. 1 12. A steam engine 9 valve actuatingand trol, 5" transmission part anchored ugh 5 meat, arod,

alve gear comprising a transmission devicearrangd remova l 11. A steam'e'ngine valve gear comprising valve actuating 'and reversing devices, con thewalve and the device having" s ro- 1 said ylever mdconnected at one end to. the control and at the other end to the transp valve gear comprising reversing devices, connecticns tothe engine, the valve-and the con? g1 device having rotating inst longitudinal movea support in which the rod is alidebly mounted at one end and'a control mounted on the rod a connected at its other bination with valv transmission device, the

permanent, operative c mounted on the'engine such transmi eversing gear in comig devices and a ts grouped in a ted relation and d a control (2on sion device, said ling a rotatable t longitudinal movenected w ith 1- A steam engine r blnation with valve actuati;

transmission (.evice, tl

permanent, operative conn on the engine an 11 such transnns mounted nected \vit transmitting ievice c part anchored agains incnt.

15. A steam. engine reversin innation with valve actuating part anchored against conncc ment, and a ro the control and at t transinisslon device.

16. A steam engine v parts and .ing valve actuating vices and th parts, ma groups mour ted on ine in combination vs control vconri actions a engines of tions from those of the other. In engine va fit the group to and cross connec one group to 17. In a stea versing link and 0 er connection pein named, in nect ng and su p ing frame. a

' 18. A valve ge 'nescomp' cylinder an lag and a x'e commotion to said -meunsfiresionsive .otelpoint of the other'c'linien". 19. vulve' gee 'nes comprising a cylinder a! [(1 means onta n erating connects he engine and a contr transmission device, said ice containing a rotatable longitudinal moveted at one end with he other end with the air support 'ed in two pe c on eac rising a reversing lin- 1 means for oscillatin lead lever for each 0 from one 'e'n to one end of said lever,

lap and its for multicylii'i'der 'enrsing link. for each for oscillating it,a fioath cylinder and I ing la an l-lea'd. leverior eac a xe con nection to one end of said" t such end, said rod end to the transmiseversing gear incomssion device 1e pa I so 1e parts mg an dapte varying the devices ating lever for multieylinder .en-

it. for each it, afloat? linder and" d of saidlinlr' aconnection from I and adjustable to themovement ofthe iston' in one cylinder for oscillating the piva lei s im! valve,

from one-end of saidlinl;

a link connect lever,

ting devices and a parts grouped in a onnected relation and and a control con g gear in comdevices and a grouped in a d relation and 01 conalve gear comprisreversing ded. connecting rmanent unitary h side of the enith valve, engine an d to be varied to design of lve gear a reboth mount- 1 between the the link, levenand ed in, the order ith suitable con artsf'orthe oper d for the support;

from said levertofsaid valve and adjustable means responsive to the movement of the piston -.in one cylinder for. oscillating the pivotal point of the lap and lead. lever for another cylinder,

V 20. A valve gear for multicylinder en gines .comprising'a reversing linkkfor each cylinder and means for oscillating'it, a float: i -ng, lap and lead lever fore'ach cylinder and connection therefrom to the valve and to the reversing lever, rock shafts having rocker arms thereon, each lap and lead lever being ivotally mounted on one of the arms of one atone end .on the other arm of each of said shafts and at the other end on oneof the.

reversing links.

21. A valve gear ginescomprising a reversing link for each cylinder and means for oscillatingit, afloating lap and lead lever for each cylinder and aconnection therefrom'to the valve andto' lever, rock shafts having;

the reversin for multi-cylinder enof said shafts, radius'bars pivotally mounted in'g lap and lead lever for each cylinder and 05 connections therefrom to the valve and to the reversin lever, rock shafts having rocker arms t ereon, each lap and lead lever being pivotally mounted on one of the arms of one of said shafts.

26. A steaniengine valve gear comprising valve actuating and reversing devices'aiid their supporting and connectmgparts arranged in a permanent unitarygr'oup. re

movably mounted on the engine in combination with valve engine and control connections adapted to be varied to fit the group to engines of varying design, said valve gear including a floating leverwith means 'for rocker arms t ereon, each lap and leadlever being pivotally mounted on'one of the arms of: each of said shafts, anda radius bar pivotally mounted at one end on the other arm of each of said shafts and at its other end on one of the reversing links,la fixed con-.

nection. from one end of each reversing'link to oneof the floating lap and leadlevers.

22-. In a steam engine valve gear a'floating lap and lead lover, a link connection therefrom to the valve and mean-s for rocking thelever to give the valve lap and lead movement and means for displacing its axis of rotation to give theva'lve travel, saidmeans comprising a-reversing lever and a link. from the lap and lead lever to the reversing lever. i

In a steam enginevalve gear a floating lap and-lead lover, a link connection gines comprising a reversinglink for each therefrom to the valve and means. for.rockingthe. lever to givethe" valve lap and lead movement and ineans responsive to the le ver for displzifiing its axi's of; rotation to give the valve travel, said means comprising a reversing lever. and anlink'from the lap and lead leverto the reversing leven; I I 251. In a valve gear for imulticylinder' engines, a floating lap and lead levrffor each to ,the

cylinder, a link connection therefrom valve and. means responsive to'j't e, opera tion'pof each cylinder for rocking tlie lever therefor to give the valve lap and leadmovement and means responsive to the operationof the, other cylinder for bodily-displacing the axis of rotation of the lever to give the valve travel, said means comprisingare versing lever and a link from the lap and lead lever tothe reversing lever; 25. A. valve gear-for multi-cylinder encylinder and'meansfor oscillating it,':a floaty movement and for moving rocking such lever to'give the lap and lead its axis of rotation to give the valve travel.

' 27. A steam engine valve gear coinprisin valve actuating and ;-reversing devices an their supporting and connecting parts ar- 35 ranged m a permanent unitary group rem ovably'mounted on theenginc in combina tion."wi'th valveengine and control c0 nnec' tions adapted to-be varied to fit the group to engines of varying-design, said valve gear in'cludinga floating lever with means for rocking su'ch lever to give the lap and lead movement and for moving its arms of rota- -tion togive the valve travel and a frame for suchuiiltary.structure intermediate the same and the engine frame.

.28. In a'valve gear for steam engines and 'the like the'combination of valve actuating one of saidlivlocks and at the other; end on 'versi 31. A 'valv devices and a revjerslng lever witha' rock shaft, rock arms thereon, means for rocking 1. said shaftiand connections between said re leverr'and s'aidrock shaft arms,

29. na valve gear for steam engines and the like the combination'of valve actuating devices and a reversing lever with a rock shaft, rock arms thereon, means for-rocking said shaft and connections between said re 'versing, lever-and said rocksha'ft arms, and a floating-lever through which the connection ,from' the reversing'lever to one of the 1'" rock anns-is made;

-30'. In an engine valve gear a reverse link and means for oscillating it, a ,flo'ating lap and lead lever and a connection from one end of said reverse link to one end of said,1 11l5 and 2 r gear for two cylinder-"engines comprisingjtwo'reversing links, means 7 responsive to the-operation of each cylinder for separately oscillating one of said links',' apair of interwoven'roek shafts having rock arms on either end, eachof-said reversing linksf-being-slotted, blocks slidable in said! slots, radiu's'ba'r's' pivoted each at one end on;

' one of the rock arms on each of saidrock shafts, a floating lap and lead lever pivoted Q on each of the other-- rock, arms on said shafts, a reach each of'said lap and lead levers and at the lead levers to the valve for each'cylinder.

32. In a. inulti-cylinder engine a pair of valve gear frames removably mounted ad jacent each cylinder, a valve gear for the two cylinders mounted on and between said frames, a. link connection between said valve gears and the engine valves and a link-connections between. said valve gears and the engines, both of said link connections being variables without reference to the valve' gear itself, a moving and driving connection across between the two frames adjacent one end alone,'reversing links mounted for oscillation in said frames removed from said cross connection, the driving connection being interposed between said reversing links and the engine, floating lap and lead. levers mounted on said cross connection, the connectious to the valves being internosed hetween the valves and such levers, driving connections between said reversing links'and 531d cross connections, one of said drivlng connections being fixed in position, the other being variable.

33. A valve gear for multicylinder engines, comprising a plurality of slotted segmental reversing links, means for oscillating each link in direct response to recip rocation a pistoninoue of said cylinders, a nhirality of interlacing rock'shafts, having eaclf shaftn plurality fif'roeker arms t here (in levers connected one to each engine valve and mounted on one of the arms of each rock shaft, :1 fixed (JOIU'lEClJlOH between each reversing link to one end of each lap and lead. lever, andv adjustable connection between Teach. reversing link to the other, lap

and lead lever, and means for varying said adjustable connection. A

' 3 A. (,(Jl'llblllfltlfll'l of .a railroad locomotive and a fixed valve gear frame removably mounted thereon, a reversing lever and rock shafts mounted on said frame, alap and lead lever mounted on one of said rock shafts, fixed connections interposed between said lap and lead lever andreversing link,

together with adjustable means for mounting the whole on the engine, and an adjustable connection from said lap and. lead lever to the valveandfroin said reversing link to the engine.

35. A valve gear for two cylinder engines able gear frames, aslotted segmental reversing .link pivotally' mounted on each frame, and a connection between each link and one of the engines, a pair of inter lacing rock shafts, journaled to rotate about a common axis, rock arms thereupon, a floatrod pivoted on one end of.

engine of a valve :1 filuralitv of floating lap and lead comprising a pair of separate removconnection betvveen each reversing link and a the remaining rock arm on each rock shaft.

36. A 'combinaticn with a two "cylinder gear frame for each ongine', a reversing link pivoted on each of said frames and [leans-for rocking it re sponsive to the reciprocation of the engine, a floating lap and lead lever pivotally mounted and a connection from said re versing link to one and thereof, a connection between the other end thereof and the valve stem and adj ustablo means responsive to the rocking of the other reversing lever for rockingthe pivotal point of. said lap and and lead lever.

37. A valve gear for two cylinder engines comprising a reversing link for each cylin der and means fir oscillating it in spouse to the movement of the piston, a

floating lap and 11 :ad lever for each cylinr.

links, means for separately oscillating each of them in. respon to the reciprocation of .one of the engine pistons, a plurality of intel-woven rock sh: fts mounted for eifective oscillatmn about a common axis and having eacha plurality of rocker arms thereon, a

floating lap and lead lever for each cylinderrotatably mountelon one of said rocker arms, a connection rom one end thereof to the valve from th: other end thereof to one of the reversing links, and an adjustable connection from another rocker arm on each.

shaft to a reversing link other than the one directly connectec to the lap and lead...lever on that shaft.

In a valve gear for a plurality. of en gines, a reciprocating pistonand its dlStIb bution valve o iieritively. united by areversin link hermane itly connected to said piston, a floating le er pern'ianently connected to said valve, and a permanent connection between said lBVt r and link said lever and link being appr ximately parallel to each other during operation in combination with another plston a1 .d val v e identlcally united, both reversing links concentrically mounted and each adjusta bly connected to the other permanently connected valve.

40. In a valve gear for a plurality'of onshaft ines, a reciprocating piston and its distriiution'valve operatively united by a reversing link permanently connected to said pis ton, a floatinglever permanently connected to said valve, and a connecting link between said lever and linkin combination with another piston and valve identically united, both reversing links concentrically mounted and each adjustably connected to the other.

permanently connected valve, the adjustable connect-ions being wholly located between the reversing links and distribution valves.

41.-I In a valve gear for a plurality of engines, a reciprocating piston and, its distribution valve operatively united by a reversing link permanently connected to said 7 floating lever permanently con- I said valve and a connecting link between said lever and link in combinationpiston, a nected to with another piston'and valve identically united, both reversing links concentrically mounted and each adjustably connected to the other permanently connected valve, the permanent and adjustable connections being whollyi located between the reversing links and distribution valves.

42. In a valve gear for a plurality of eni gines, reciprocating pistons and distribution valves 'operatively connected, said valves each permanently and adjustably connected to reversing links; reverse shafts concentrically mounted between said valves 4 and links, operative connections between after,

said reverse shafts and said adjustable connections.

43. In a valve gear for a plurality of engines, reciprocating -pistons and distribution valves operatively connected, said valves each permanentlv and adiustably connected to reversing links, rockshafts concentrically mounted between said valves and links, adjust-able connections, between said rock shafts and said links.

A?! .In a. valve gear for a plurality of an reciprocating pisfiins and distribution valves operatively connected, transverse rock shafts concentrically mounted between said'valves and reversing links, adjustable connections between said rock shafts and said valves.

45. In a valve gear for a plurality of engines, reciprocating pistons'and distribution valves operatively connected including reversing links, reverse shafts and rock shafts concentrically mounted in three unit groups,

said reverse shaft group locatedbetween said link-and said rock shaft group.

46. In a steam engine a valve rod crosshead. h ving integral trunnions outwardly projecting therefrom, valve actuating means and a flexible connection interposed between said trunnions and'said means.

47. In steam engine a valve red cross head. having integral trunnions outwardly guide,

projecting therefrom, valve actuating means and. a flexible connection interposed between said trunnions and said means, the valve rod adjustably secured on the valve stem;

48. In a steam engine a valve rod'crom head, a; guide therefor, a floating lever, and connecting links interposed between said lever and said crosshead.

,49. In a steam engine a steam chest and a 'alve stem crosshead slidable. along said a floating lever, interposed between saidvalve stem and said floating lever.

5Q. In-a'valve gear for a pluralitybf engines. comprising reciprocating pistons and distribution valves operativeiy connected, the combination of rock shafts ronce, .ically mounted, lap and lead members supported thereon, reversing links and adjust able connections between said rocks shafts and reversing links. 4

51. In a valve gear fora plurality, of engines. comprising reciprocating pistons and distribution valves operatively connected, the combination of rock shafts 0011083 trically mounted, lap and lead members supported thereon, reversing links and adjustcover therefoiza guide projecting therefrom,

able connections between said rock shafts.

and reversing links, and permaneutconhee tions between and reversing links.

52. In a valve gearfor a pluralityof engincs, comprising reciprocating pistons and distribution valves operatively connected,

54. In a valve gear for double cylinder engines comprising reciprocating pistons and distribution valves operatively connected, the combination of two rock shafts concentrically mounted, two,reversing links adjustably connected, one to each rock shaft, a floating lever supported by each rock shaft, each floating lever permanently connected to a distribution valve and to the reversing link to which its supporting rock shaft is un connected. v

In a valve gear fordouble cylinder engines, comprising reciprocating pistons and and connecting links said lap and lead members distribution valves operative] connected, the combination of rock she s concentrically mounted, reversing links adjustably connected to-said rock shafts, floating levers supported by said rock shafts, each reversing link permanently connected to the floating lever on its side-of the engine for producing approximately parallel motion.

56. In a valve gear for steam eh 'ines the combination with the crosshead o the cyl inder of a wrist pin thereon, a main rod oted to the said wrist pin, a r'eversin mounted on' the locomotive frame an having a downwardlyprojccting arm and a connecting link pivoted at one-end to said arm and-at theother on the said wrist in,

571 A valve gear'for multi-cy inder engines comprising reciprocating. pistons and distribution valves operatively connected in unit groups, each group having a radius bar extendingrearwardly from its fulcrum and reversing link adjustably connected thereto and floating .lever permanently connected to said link. a

58. A valve gear for multi-cylinder engines comprising reciprocating pistons and distribution valves operatively connected in" unitary groups each group having a radius bar extending rearwardly from its fulcrum and a reversing link adjust-ably connected thereto, and a reciprocating cross head directly connected to saidlink.

59. valve gear for multi-cylinder en ginescomprising reciprocating pistons and distribution valves operatively connected in unitary groups, each grou having aradius bar extending rearwarc 1y from its fulcrum and reversing link adjustablyconnected thereto, and floating lever andreciprocating cross head permanently connected to said link. V

60. A; valve gear formulti-cylinder engines-comprising reciprocating pistons and distribution valves operatively connected in miit'groups', each-group having a radius bar extending rearwardly from its fulcrum" ,and

-a reversing linkadjustably connected therereversing linkadjustably connected thereto,

62. 'A valve gear "for miilt'i-cylinder en-' gines compr snig reciprocating pistons and lstribution valves, reverslng-links concento, and a recipro'cating crosshead perma- -1f1entlyconnected .to said link, all jar-ranged 50 or synchronous motion.

gin'es comprising reciprocating pistons and istr butlon VflglVGS operativcly connected, in

, unit groups, "each. group having a radius bar extending rearwardly from its fulcrum. and a and floating lever and reciprocating crossheadq permanently connected "to said link,

a'lllarr anged. for synchronous motion.

tricallvmounted' to oscillate upon a fixed fulcrum, a l he and l l P Elli , arm on each shaftu bination; a

61. A valve gear for multi cylinder'ennently connected to said links at their upper ends, above their centers of oscillation.

' 63. A valve gear for multi-cylinder engines comprising reciprocating pistons and distribution valves, reversing 1 inks ooncentrically mounted to oscillate upon a fixedfulcrum, and lap and lead levers and reciprocating pistons permanently connected to said links at men upper ends, above their centers of oscillation.

64, In a steam engine valve gear a pair of rock shafts jonrnald for effective rotation about the common axis having r'o'ckxal'ms.

said shaft, means for holding it against longitudinal movement, a nut in engagement with said screw, a sleeve slidable there along, in which said nut is contained, a link interposed between'saidsleeve and saidarm,

and flexibleoperative connection from said screw to the loc )motive' cab.

66. In a steam engine valve gearin combination' a pair of IIItEIWOVBH rock-shafts journaled for efective rotation about a common axis, and rock arms projecting, upwardly from either end of each shaft, and'a floating lap and lead member pivotally mounted on one rock arm on each s aft.

'67. In a steam eng ne 'ualvegelar in combination a pair ofinterwoven rock shafts journaled for eflectiverotat-ion about a common axis, ca'ch siaft beingfexaetly sim lar to the other, and purnaled at one end on. and

projecting atthe other end beyond its mate;

rock arms orojectin'gupwardly fnom either lead member pivotally mounted on one" took 68. In a steam engine val-veigear in'com pair of interwoven, rock shafts end of ene she ft ant a floating-lawsuit journaled for eflactive rotation ixbout a com;

mon axis, and rock arms, proj ectfngiup-i \vardly from eitler end of each shsif and a floating lap and lead member pivotally mounted on one rock arm on each shaft, and

driving means aoplied to each rocksha ft s on said rock arms.

69. he steam engine valve gear in com.- bin'ation a pair of interwoven rock shafts journale'dfor effective rotation about a com of the other mon axis, each shaft being'exactly similar to. the-'otherfand "oil'rnaledlat' one end on and. projecting at t e other .end he ondits mate, ,rock arms projectingfupvverdl end of-said' shalt, .a floating member 'pivotally mounted on y fromyeither lap and leadone: rock arm 3 ins on each shaft, and drivin each of the other rock s arms. i 70. In a steam engine valve gear in com- 6 bination a pair of lnterwovenmock shafts j-ourn-aled for effective rotation about a comm'on,axis, each shaft bein exactly similar 'tothe other and j'uur-nale r and projecting at the other end beyond its mate, 'and'rock arms from either end of each shaft, areversehhk pivotally mounted in the same plane a-sfone of. said rock arms on each shaft, and adjustable, connections interposed between it and said arm; j 71. In a steam engine valve gear in combination apair of lnterwoven rock shafts journaled for effective rotation about a common axis, and rock arms pro ecting upward .20 from either'end of each shaft, 8 reverse link pivotally mounted in the same plane as one of said rock arms on :each shaft and adjustable connections interposed between it and shid. arm,..and av floating lap and lead member pivotelly mounted on each of the otherrock arms on said. shafts. p

72. Ina steam engine valve gear in conlbination a pair of'int'erwoven rock shafts journaled for-effective rotation about a 001m inon axis, each shaft being exactly similar totheothextaand-journaled at one end on means applied to. afts on said rock i b and projecting at the other end beyond its mate, un'd rock arms projecting upwardly from-either end of each l1'nft,'a reverse link :p ivota'lly mounted in the same plane as one of said roek-arms on'each shaft, and adjustable connections interposed betweenit and said arm, and a. flexible lap and'lead member pivotally mounted on each of the 40 other rock arms on said shaft.

7;. In a steam engine valve gearin combingition .a pair of interwoven rock shrtfts 'ourna ,ledfor effective rotation about a corninon exis,"ai d rock arms projecting ctr-shantit v .o.each,l1 and adjustahlfl conneot-ions' interposed bea saida.rrn n floating lap "and eed me'm er pivota'lly liefo'ther rock-arms on said, shaft, and a "reach rod pivoted to one end on. the floating h p and lead member at the other end on the reverse l nk. j I ffigyln asteam engine valve gear in combination. LU-pill! of interwoven rocklshafts io rne edf qrotetianazbouta. comverse linli pivot} sitme plane; as one of end on the floatin r lap and lead at one end on projecting upwardly Y .sald gland parallel with the rod and mountedon' each of lapjand lead-lever, 'thettvo ltS mate i nections interposed between it and said arm, a flexible lap and lead member pivotally mounted on each of the other rock arms on said shaft, and a reach. rod pivoted to one member at theother end on t 1e reverse 75. In a steam engine valve gear, the com,- bination of reverse gear, =9. rotat ble-- shaft for controlling the reversing nove'inent, an indicator rod slidable within said shaft, tin indicator collar upon said shaft in opposition to said indicator rod "interposed between said rod and shaft independent of said carriage, rod or shaft said connection compr singe pin on the lower and means for 1 moving said rod throughg saidlcoller in. e-

spouse to the-movement bf the reversing end-of the indicator rod, the shaft being slotted throughthe passage of saidpin-lom gitudinally there along, the carriage being grooved to engage said pin and more it longitudinally in unison with the carriage independently of its rotation.

76. In a steam engine valve gear, the combination'of a. valve rod, :1 pack therefor, the end of the valve rod, a valve rod crosshead guide integral with the gland.

In a. steam engine valve gear, the combination of a valve rod, 9. packln gland tl1erefor,-a guide projecting outwar y from a cross head slidable on said guide and attached to the rod. L 78..In a steam engine valve gear, the

mg'glantl a valve rod crosshead supporting combination Of'it valve rod, packing gland therfor, acrosshead on the rod, a. guide projecting from the gland, the crosshead be"- .ing apertured to engage the guide.

r 80. Inc steam-engine valve gear in c0m engine in combination .a-j I e b bssheed bination a floating --lep and lead lever, n

connection therefrom to the valve, standard? driving and reversing means grouped as a unit in permanent operative relation therewith' for rocking said lever to give the valve lap and lead movement and forbod-fly moving the pivotal point of said lever to give.

the valve travel.

bination ofje reverse lever-with trflqa'tin'g stantially parallel} to and .jseparute'd from each" other I'w'ith suitable connections be.- tween said. levers and the control.;

I 81. In'avalve-gearfor an'enginethe com' I I I and the engine, the I valve. 7

mm, a rewiprm. ting pig trically mgmntml and emhadjmmhiy 0pm 10 W valveo pemtively .y a mavers rmczted to the othaax" floating lawm. :ing link pemmnently c: m m said pis In testimony whemo'f "I; afiix'mysignw ban, a flouting lever pa mmfiy mnuected tune "in mm presence of FDWO itnesses this 5 to said valve, and a. p A ml'lwt cnmmection 531stday of Saptembwr 19H. between said lever and linkfur producing ()"B W'. YOUNG. appruxinmtely parallel :motionin combina- Wimess'esz tion with another pistbn and valve identi- GENEVA Hm'rn, sally united, both reversing links conon Bmssm Sy lh 1 

